Honing attachment for lathes



March 1967 R. G.-NORRIS HONING ATTACHMENT FOR LATHES Filed Aug. 5, 1964INVENTOR.

RICHARD G. NORRIS United States Patent 3,307,298 HONING ATTACHMENT FORLATHES Richard G. Norris, P.0. Box 14, Cumberland, RI. 02838 Filed Aug.5, 1964, Ser. No. 387,625 3 Claims. (Cl. 51-259) This invention relatesto a honing attachment for a lathe or the like and has for its principalobject the provision of an adjustable attachment which can be applied tolathes of varying sizes.

Another object of the invention is to provide a novel honing attachmentfor a lathe, which may be readily secured in a vertical relationship tothe normal ways of a lathe.

A further object of the invention is the provision of a separate drivemechanism for the honing attachment of this invention, which drive meansmay be readily secured in a collet or other chuck of a lathe which driveattachment may be readily engaged with the honing attachment.

A still further object of the invention is the provision of a honingattachment for a lathe which may be readily secured to the ways of alathe and may be adjusted in height relative thereto so as to be placedin proper operating position relative to the spindle of the lathe.

A still further object of the invention is to provide a novel honingattachment which is economically manufactured, easily used andmaintained for the purposes intended.

With these and other objects in view, the invention consists of certainnovel features of construction as will be more fully described andparticularly pointed out in the appended claims.

In the drawings:

FIG. 1 is an elevational view partly in section showing my improvedattachment as applied to a lathe; and

FIG. 2 is a to view of reduced scale.

Referring now to the drawings, generally designates a lathe bed, while11 generally designates the head stock assembly which consists basicallyof a drive spindle 12 to which a number of attachments may be added. Forexample in the drawings, there is shown a key type chuck 13 of the usualform.

The honing attachment assembly includes a main support member generallyindicated at 15 which includes a tubular member or post-like member 16that rises vertically from a rectangular base member 17. Within thetubular support member 16, there is received a pair of spaced bearings18 and 19 which have journaled therein a main shaft 20. On the upper endof the shaft 20, there is suitably secured a table 22 which may befastened to the shaft by means of a socket-head screw such as 23. Thetable 22 has provided on the periphery thereof a lip 24 such that arecess is formed to receive an abrasive wheel 25. On the lower side ofthe table 22 a bevel gear 26 is fastened, which gear has a plurality ofteeth 27 that are adapted to engage the drive pinion 28, the shaft 29 ofwhich is received within the drill chuck 13. It will, of course, beappreciated that it is not necessary to utilize a d i uc a t er f rms. fr ve m ans, for ex- 3,307,298 Patented Mar. 7, 1967 ample, three or fourjawed chucks and collets are equally suitable.

Received on the shaft 20 are a pair of collars 30 and 31, the collar 30hearing against a washer-like element 32 resting on the upper end of thetubular support member 16. The collar 30 is retained in position by aset screw 33, and serves to support the table and gear 26 in properposition for driving by pinion 28, while collar 31 limits upwardmovement and similarly has a retaining set screw 34. This particulararrangement permits the shaft 20 to be adjusted vertically with respectto the tubular support 16 to thereby meet the various requirements oflathe constructions and particularly spindle heights above the lathebed.

In order to permit adjustment of the honing assembly transversely of themachine, the base 17 is provided with an adjustable clamp bar 40 with abolt 41 passing up through the base and being held in position by a nut42. Thus, the base 17 may be slid along the lathe ways into properengaging position so that the bevel gear 26 will engage the drive pinion28 and then secured in position by tightening the nut 42 after the barmember 40 has been swung transverse of the lathe bed so as to engage theunderside thereof.

I claim:

1. A honing attachment for a machine tool having a generally horizontalbed and a horizontal rotating shaft, comprising a base to engage themachine tool bed, means to clamp the base to the bed, said base beingprovided with an upstanding tubular member, a vertical shaft journaledin said tubular member, a table secured to the upper end of said shaft,abrasive material carried by the upper side of said table, powerengaging means secured to the under side of said table and engaged by adriving means adapted to be attached to said rotating shaft of themachine tool.

2. A honing attachment as in claim 1 wherein collars are secured to saidvertical shaft above and below said tubular member to verticallyadjustably locate said shaft in said member.

3. A honing attachment as in claim 1 wherein said power engaging meansand driving means are bevel gears.

References Cited by the Examiner SWINGLE, Primary Examiner.

1. A HONING ATTACHMENT FOR A MACHINE TOOL HAVING A GENERALLY HORIZONTALBED AND A HORIZONTAL ROTATING SHAFT, COMPRISING A BASE TO ENGAGE THEMACHINE TOOL BED, MEANS TO CLAMP THE BASE TO THE BED, SAID BASE BEINGPROVIDED WITH AN UPSTANDING TUBULAR MEMBER, A VERTICAL SHAFT JOURNALEDIN SAID TUBULAR MEMBER, A TABLE SECURED TO THE UPPER END OF SAID SHAFT,ABRASIVE MATERIAL CARRIED BY THE UPPER SIDE OF SAID TABLE, POWERENGAGING MEANS SECURED TO THE UNDER SIDE OF SAID TABLE AND ENGAGED BY ADRIVING MEANS ADAPTED TO BE ATTACHED TO SAID ROTATING SHAFT OF THEMACHINE TOOL.